Circuit Playground app icon

Apps Like Circuit Playground for iPhone and iPad

Calculate component values and resistor codes

Calculate component values for Op Amp, 555, RC Filter, and Resistor Divider circuits. Decode resistor and capacitor codes. Compute power, resistance, current, and voltage using Ohm's Law and Power Calculators.

by Adafruit Industries LLC★ 4.319 ratingsUtilities$2.99Data updated 2026-09-08

Circuit Playground screenshots

Ranked alternatives

Showing 101–120 of 1,000 ranked alternatives.

  1. Ohm's Law Calculator app icon

    Ohm's Law Calculator

    Phan Nhat Đang

    Calculate voltage, current, resistance, power

    Calculate voltage, current, resistance, and power by entering any two values. Automatically compute the remaining values. Support multiple units including volts, amps, ohms, and watts. Convert between kilo, mega, and milli units.

    ★ 5.02 ratingsUtilitiesFreeData updated 2026-09-27
  2. Gold Tracker: Live Spot Price app icon

    Gold Tracker: Live Spot Price

    Hearn Apps, LLC

    Track transactions and calculate values

    Track and manage precious metal transactions with detailed records and customizable calculators. Catalog purchases in the Vault, hide percentages for customer calculations, and perform on-the-spot financial computations.

    ★ 4.81,534 ratingsFinanceFreeData updated 2026-09-08
  1. NerdCalc app icon

    NerdCalc

    Nidal Fakhouri

    Calculate in binary, hex, and decimal simultaneously

    Convert numbers between binary, hexadecimal, and decimal bases. Display all three bases simultaneously. Switch input modes and see results in all bases. Perform arithmetic, logic, and bitwise operations. Support unsigned and 2’s complement numbers.

    ★ 4.8183 ratingsUtilitiesFreeData updated 2026-09-08
  2. RC Circuit app icon

    RC Circuit

    Siu Yuen Ho

    Electronic circuit calculations for hobbyists and engineers.

    The app calculates RC charging and filter circuits. It finds component values, voltage at time t, and cutoff frequency, supporting multiple languages and data export.

    ★ 4.85 ratingsUtilitiesFreeData updated 2026-10-28
  3. Capacitor-Converter app icon

    Capacitor-Converter

    Gerhard Lentschik

    Calculate values and color codes

    Calculate values by entering the EIA code or desired value. Determine color rings based on capacitance. Support SMD capacitors and convert between codes and values.

    ★ 4.89 ratingsUtilitiesFreeData updated 2026-09-06
  4. Rafter Help app icon

    Rafter Help

    Armchair Engineering

    Calculate roof pitch and length

    Calculate length and associated values for gable roofs. Input room width and ridge height to determine pitch, lengths, and ridge height. Use advanced options to enter pitch in radians, degrees, DMS, or rise/run.

    ★ 4.5213 ratingsUtilities$1.99Data updated 2026-09-10
  5. 555 Calc app icon

    555 Calc

    HIDEKAZU JIBIKI

    Calculate timer IC 555 resistors

    The app calculates resistor values for circuit design using the Timer IC 555. Users input frequency, duty ratio, and C1 value, then touch calculate to see resistor values.

    ★ 4.03 ratingsUtilitiesFreeData updated 2026-11-01
  6. SuBinary 10 app icon

    SuBinary 10

    Enes Akkus

    Convert binary, decimal, hex, and octal values

    Convert binary to decimal, hexadecimal to octal, and other number systems. Enter values in the text area and tap to convert. View results instantly without additional steps.

    ★ 5.03 ratingsUtilitiesFreeData updated 2026-09-15
  7. Electrical Calculation Tools app icon

    Electrical Calculation Tools

    Kantaben Gorasiya

    Calculate voltage, current, and power

    Calculate values using Ohm’s Law with inputs for voltage, current, and resistance. Determine power with formulas for watts, amps, and volts. Convert between units like volts, amps, and kilowatts. Store frequently used values for quick access.

    ★ 0.00 ratingsUtilities$1.99Data updated 2026-09-06
  8. CircuitWay app icon

    CircuitWay

    栋侠 郑

    Design circuits and simulate electronics

    Design and simulate analog and digital circuits with SPICE technology. Analyze circuit behavior and test designs. Explore 97 example circuits including BJT amplifiers, MOS amplifiers, oscillators, filters, and complex projects like UART and RISC CPU.

    ★ 0.00 ratingsEducationFreeData updated 2026-09-06
  9. The Ohms Law Calculator app icon

    The Ohms Law Calculator

    Adam Wilkie

    Calculate power, voltage, resistance, current

    Calculate power, voltage, resistance, and current using Ohm's Law. Enter any two values to instantly receive all results. Switch between Watts, kiloWatts, and MegaWatts. Clear fields with a button. Share results via built-in sharing.

    ★ 0.00 ratingsUtilities$0.99Data updated 2026-09-06
  10. Basic Electronic Calculator app icon

    Basic Electronic Calculator

    Gergely Nagy

    Calculate voltage, current, resistance, and power

    Calculate voltage, current, resistance, or electric power by entering any two values. Convert results between normal and scientific notation. Display calculated values clearly.

    ★ 3.52 ratingsUtilitiesFreeData updated 2026-09-08
  11. Electrical Converter app icon

    Electrical Converter

    V PUGAZHENTHI

    Convert units, calculate values, switch categories

    Convert units across 16 categories with 173 units and 2162 conversions. Perform calculations for field strength, resistance, capacitance, and more. Access 62 calculators via in- purchase.

    ★ 4.031 ratingsUtilities$0.99Data updated 2026-09-08

How we rank alternatives

Apps are ranked by functional similarity, category fit, rating confidence, and popularity.